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2 years ago

12. What is the equation of a circle with center (-7, -3) and radius 2?

Mathematics

1 answer:

Genrish500 [490]2 years ago

3 0

Answer:

(x + 7)^2 + (y + 3)^2 = 4

Step-by-step explanation:

The standard equation of a circle is:

(x - h)^2 + (y - k)^2 = r^2

where (h, k) is the center and r is the radius. We can substitute the information given to obtain:

(x + 7)^2 + (y + 3)^2 = 4

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irakobra [83]

Answer:

I got $27\sqrt{3}$ which is 46.76537.... in decimal form.

Step-by-step explanation:

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2 years ago

Help, I’m stuck. Thank you very much

ZanzabumX [31]

If you notice, the container is really just two circles, with a diameter of 4 each, and a square with sides of 10.5.

now, if we just get the area of each circle, keeping in mind their radius is half of the diameter, namely r = 2, and get the area of the 10.5x10.5 square, sum them up, that'd be the surface area of the container.

$\bf \stackrel{\textit{2 circle's area}}{2(\pi r^2)}~~+~~\stackrel{\textit{area of the square}}{10.5\cdot 10.5}
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3 years ago

The sum of nine consecutive integers; n=middle integer of the nine

VMariaS [17]

$(n-4)+(n-3)+(n-2)+(n-1)+n+(n+1)+(n+2)+(n+3)+(n+4)=9n$

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2 years ago

PLEASE HELP!!!<br> Solve for X...<br> Cos30=x/8<br> Answer MUST be in radical form. NO DECIMALS.

Ivenika [448]

cos(30)=x/8

Rewrite the equation as

x/8=cos(30)

Multiply both sides of the equation by

⋅

x/8=8⋅cos(30)

Simplify both sides of the equation.

Tap for more steps...

x=4√3

The result can be shown in multiple forms.

Exact Form:

x=4√3

Decimal Form:

x=6.9282032

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3 years ago

You are serving bratwurst and hamburgers at your annual picnic. You want at least three bratwursts or hamburgers for each of you

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3 years ago

Read 2 more answers